COVID-19 studies:  C19 studies: C19:  IvermectinIVM Vitamin DV.D HC QHC Q Vitamin CV.C ZincZn PVP-IPVP-I REGNREGN LY-CoVLY RemdesivirRMD
HCQ study #6 of 231
3/26 Late treatment study
Zhong Nanshan (钟南山) (Preprint)
Efficacy and safety of chloroquine for treatment of COVID-19. An open-label, multi-center, non-randomized trial
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197 patients. CQ effective. Day 10 viral RNA negative 91.4% HCQ versus 57.4% control. Median time to negative test 3 days versus 9 days for control.

Zhong et al., 3/26/2020, retrospective, China, Asia, preprint, 1 author.
risk of no virological cure at day 10, 80.0% lower, RR 0.20, p < 0.001, treatment 5 of 115 (4.3%), control 17 of 82 (20.7%), adjusted per study.
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